1. Use a CMS (content management system).

This will make sure that you’re designing with best practices in mind, and flag any issues before you launch your site.

2. Specify size attributes for images and videos.

Rather than letting them set their own height and width, dictate si...

The good news is that you don’t have to measure CLS yourself because Google makes it really easy to analyze your page performance with their PageSpeed Insights tool, or in the Chrome browser using Lighthouse Tools.

To analyze performance in PageSpeed Insights:

• Enter a website URL...

CLS only takes into account unexpected changes. If the layout changes because of a user-initiated action, there is no impact on CLS. This is a helpful tool to use when you don’t need to load everything all at once. Instead, offer users the opportunity to choose which elements they want to view th...

A good cumulative layout score is anything less than 0.1. The reports from PageInsights or Lighthouse tools will automatically flag any poor scores, as well as provide advice on how to optimize the page for better performance.

Cumulative Layout Shift is one of these key metrics that measures the “jumpiness” of a website and how it unexpectedly moves as elements load. Let’s take a closer look at how this metric works, and how you can make sure your own website is following best practices so you rank higher on search eng...

Jumpy websites that load in pieces or with unexpected behavior will cause your visitors to find another website to browse. And if they do stick around, a high CLS score is likely to cause usability problems like choosing the wrong option, checking out too early, or missing parts of your website a...

These are the two variables that Google uses to calculate CLS in the formula below:

layout shift score = impact fraction x distance fraction

• Impact fraction relates to the size of the unstable element in comparison to the viewport.

Paying attention to CLS not only provides a better user experience, but it also boosts your search result rankings. It’s a win-win.

To meet Google’s standards for CLS, start by using a diagnostic tool to measure your website’s current performance. Take into account the basic guidelines outl...

Cumulative Layout Shift (or CLS) is a measure of how much a webpage unexpectedly shifts during its life. For example, if a website visitor loaded a page and, while they were reading it, banner loads and the page jumps down, that would constitute a large CLS score.

Along with Largest Content...